Was at my friends place and she gave me $100 and I said that I would pay it back. Well, she took my jeans and wash them with out telling me. I was wearing shorts at the time. Well I had my wallet and Bose headphone in the pocket and everything in the wallet is all mess up and Bose headphone does not work anymore. The Bose cost $99 which I got a few months ago. She said that it's my fault for keeping my stuff in my pant and I should have known to take them out before she wash them even though I didn't know she was going to wash my jeans. Only shirts.

Should I pay her $100 that I owe her or because she wash my jeans without checking the pockets that we were even.

If I were in your situation, it would all come down to how reasonable my friend is willing to be. I try not to be a selfish person, and if they're reasonable about it, I would probably pay back the full $100 and forget the whole situation. But if not, then I would insist on some sort of compromise, where I only pay back part of what I owed. And if she's a downright bitch, well...

Regardless of what you choose to do, learn this lesson: Always insist on doing your own laundry.